<script src="./utils.js"></script>
<script>
let jsonDate='{"a":0,"b":"ok","c":null,"d":undefined,"e":true,"f":false}'//=>{a:0,b:"ok",c:null,d:undefined,e:true,f:"false"}
console.log(parse(jsonDate)); 
let obj={a:0,b:"ok",c:null,d:undefined,e:true,f:"false"}
console.log(Stringify(obj));  
</script>